551455-graphics-programming-2526-the-repo-Zyb3rWolfi/TheRepo/TheLabs/Shaders/shader.frag

#version 330 core

out vec4 outputColor;

// --- INPUTS ---
in vec3 FragPos;
in vec3 Normal;
in vec2 TexCoord;

// --- UNIFORMS ---
uniform sampler2D uTexture;

void main()
{
    // Lighting Setup
    vec3 lightPos = vec3(1.2f, 1.0f, 2.0f);
    vec3 lightColor = vec3(1.0f, 1.0f, 1.0f);

    // 1. Get Texture Color (Keep it as vec4!)
    vec4 objColor = texture(uTexture, TexCoord);

    // 2. Ambient
    float ambientStrength = 0.1f;
    vec3 ambient = ambientStrength * lightColor;

    // 3. Diffuse
    vec3 norm = normalize(Normal);
    vec3 lightDir = normalize(lightPos - FragPos);
    float diff = max(dot(norm, lightDir), 0.0f);
    vec3 diffuse = diff * lightColor;

    // 4. Combine
    // Note: We use objColor.rgb (vec3) to match the lighting calculation
    vec3 result = (ambient + diffuse) * objColor.rgb;

    outputColor = vec4(result, objColor.a);
}